I have installed gentoo linux on Ultra Sparc10. The kernel is 2.2.26. On the first reboot (after making almost everything modular) I get the following problem :
Kernel panic: VFS: Cannot open root device "hda4" or 03:04

I have installed gentoo linux on Ultra Sparc10. The kernel is 2.2.26. On the first reboot (after making almost everything modular) I get the following problem :
Kernel panic: VFS: Cannot open root device "hda4" or 03:04

image = /kernel-2.2.26
label = linux
(in fact I have copied kernel-2.2.26 at / and as well as /boot)

I have been struggling with it for some time. Please help

can you boot it manually outside of silo?- ie at the ok prompt type something like

ok: boot kernel-2.4.26 root=/dev/hda4

also - i'm not super familiar with the ultra series- does the ultra 10 have regular ide drives (hda) or scsi drives (sda)? that could be part of the problem too